EP 0502643 A3 19930721 - IMAGE PROCESSING UNIT AND METHOD FOR EXECUTING IMAGE PROCESSING
Title (en)
IMAGE PROCESSING UNIT AND METHOD FOR EXECUTING IMAGE PROCESSING
Publication
Application
Priority
JP 3973291 A 19910306
Abstract (en)
[origin: EP0502643A2] An image processing unit generates a virtual environment or an artificial reality by displaying a necessary image in accordance with movement of a view direction of a person on a head mounted display and comprises a sensor (10), an image processing portion (11), and a display (13). The sensor (10) detects a view direction and generates a view vector, and the image processing portion (11) comprises a view direction movement discriminator (14), a priority degree allocator (15), and a partial update portion (16). The view direction movement discriminator (14) calculates a view direction movement vector from the difference between the latest two fetched view vectors, the priority degree allocator (15) generates a projection vector by projecting the view direction movement, determines a priority degree at each divided section of the display screen to be higher when the projection vector approaches and to withdraw from the centre of the display screen to a periphery along the projection vector, and the partial update portion (16) updates the display of the display screen in each divided section in accordance with the priority degree. <IMAGE>
IPC 1-7
IPC 8 full level
H04N 13/00 (2006.01); G06F 3/00 (2006.01); G06F 3/01 (2006.01); G06T 13/20 (2011.01); G06T 19/00 (2011.01); G09B 9/30 (2006.01); G09G 5/00 (2006.01)
CPC (source: EP US)
G06F 3/012 (2013.01 - EP US); G09B 9/302 (2013.01 - EP US); G09B 9/307 (2013.01 - EP US); G09G 5/00 (2013.01 - EP US)
Citation (search report)
- [A] GB 2201069 A 19880817 - WALDERN JONATHAN DAVID
- [A] US 4348186 A 19820907 - HARVEY JAMES F, et al
- [A] SCIENTIFIC AMERICAN vol. 257, no. 4, October 1987, NEW YORK US pages 82 - 90 J.D. FOLEY 'Interfaces for Advanced Computing'
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0502643 A2 19920909; EP 0502643 A3 19930721; EP 0502643 B1 19960605; DE 69211185 D1 19960711; DE 69211185 T2 19961002; JP 2671619 B2 19971029; JP H04277871 A 19921002; US 5442734 A 19950815
DOCDB simple family (application)
EP 92301570 A 19920225; DE 69211185 T 19920225; JP 3973291 A 19910306; US 84542292 A 19920306